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Quote from: ibnux on September 04, 2020, 01:43:46 pm

My goal is, i want to do offline transaction signing, but i am not understand about how NXT do offline signing for transaction

I'm not a dev, but maybe this could be of some help - https://nxtdocs.jelurida.com/Offline_Transaction_Signing & https://nxtdocs.jelurida.com/Transactions
Moreover, Nxter Magazine created their own Offline Signing Tool for Nxt, called NXTBridge, which may be of some help to you - https://www.nxter.org/nxtbridge-offline/

Great!!
now i able to offline transaction signing on ANdroid.
thanks for reference to nxtbridge offline

Release page
i create NXT Wallet to
https://github.com/ibnux/Android-NUX-Wallet/releases

basic usage just for transfer coin, backup and restore wallet

Hi,
i Create android client, is not yet done
im still working for backup and restore wallet to file

but you can see the source in here
https://github.com/ibnux/Android-NUX-Wallet

My goal is, i want to do offline transaction signing, but i am not understand about how NXT do offline signing for transaction

i already add Curve25519
https://github.com/ibnux/Android-NUX-Wallet/tree/master/app/src/main/java/com/ibnux/nuxwallet/kripto

i want to sign on step 2
https://github.com/ibnux/Android-NUX-Wallet/blob/5135b2915fa7a8cfbdaa34f0464d3578850008ec/app/src/main/java/com/ibnux/nuxwallet/utils/NuxCoin.java#L266

i create Wallet generator too, based javascript on NXT, but still cannot found how to do offline signing
https://github.com/ibnux/NUX-Wallet-Generator/

i try NRS.signBytes(message,password);
but result is different

i will update if it done, if someone understand, just reply or DM me

if you like my project, consider to donate some NXT
to my empty wallet 
NXT-TNHJ-LAC5-7DGL-HR7Y5

and i will build for NXT too